package com.zhouxiaoge.web.controller;

import com.zhouxiaoge.dto.FileInfo;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.Date;

/**
 * 作者： 周小哥
 * 时间： 2018-06-11 22:02
 * 邮箱： gqzmy@outlook.com
 **/
@RestController
@RequestMapping("file")
public class FileController {

    private String folder = "D:\\IdeaProjects\\SpringSecurity\\security-demo\\src\\main\\java\\com\\zhouxiaoge\\web\\controller";

    @PostMapping
    public FileInfo upload(MultipartFile file) throws IOException {
        System.out.println(file.getName());
        System.out.println(file.getOriginalFilename());
        System.out.println(file.getSize());

        File localFile = new File(folder, new Date().getTime() + ".txt");

        file.transferTo(localFile);
        return new FileInfo(localFile.getAbsolutePath());
    }

    @GetMapping("/{id}")
    public void downLoad(@PathVariable String id, HttpServletRequest request, HttpServletResponse response) {
        try (InputStream inputStream = new FileInputStream(new File(folder, id + ".txt"));
             OutputStream outputStream = response.getOutputStream()) {
            response.setContentType("application/x-download");
            response.addHeader("Content-Disposition", "attachment;filename=test.txt");
            IOUtils.copy(inputStream, outputStream);
            outputStream.flush();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
